How to use placeholder option in online case form.

We can set the placeholder for fields in online case form by script.

Template:

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    <link href="https://fonts.googleapis.com/css?family=Nunito+Sans" rel="stylesheet">


 <div class="col-sm-12 col-md-6 textfield">
                                    <div class="control-group ">
                                        <label class="control-label" for="firstname"> </label>
                                        <NLFIRSTNAME>
                                        </NLFIRSTNAME>
                                    </div>
                                </div>
                                <div class="col-sm-12 col-md-6 textfield">
                                    <div class="control-group">
                                        <label class="control-label" for="lastname"> </label>
                                        <NLLASTNAME>
                                        </NLLASTNAME>
                                    </div>
                                </div>


 <script>
        $(function () {

            $('#firstname').attr("placeholder", "*First Name");
            $('#lastname').attr("placeholder", "*Last Name",);
        })
    </script>